Fonzie and the gang meet Cupcake, a girl from the future whose ponytails defy gravity. She takes them on fun adventures through history. The original Happy Days cast voiced their own characters. The gang was accompanied by an addition in the form of Fonzie's dog, Mr. Cool.

A Hanna-Barbera Production.Thirty minutes.ABC: November 8, 1980 to September 18, 1982.